April 25, 2011: Take a walk out to the end of San Francisco’s Pier 39, and you’ll hear an interesting symphony of barking California sea lions and reactions of delight and amusement from droves of human onlookers. And if you’re lucky, you might also find the “Gentleman Biologist of Pier 39,” Tim Vogel, a volunteer at the Marine Mammal Center in Sausalito, who has pursued tech career in Silicon Valley but has never forgotten his Seacamp roots. He spends hours teaching and inspiring visitors about the incredible wildlife of the West Coast and the wonders of science. Also: An update on the penguin rescue effort from Tristan da Cunha by Trevor Glass, Director of the Department of Conservation there.

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